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Spectra Legacy – Gutenberg Blocks <= 2.20.0 - Authenticated (Contributor+) Sensitive Information Exposure

Type: advisorySource: Official CVE List1 source record

The Spectra Legacy – Gutenberg Blocks plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.20.0 via the editor_assets function, which exposes the uag_insta_linked_accounts option through the uagb_blocks_info object without a capability check. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive data including raw Instagram Graph API access tokens configured by an administrator. Exploitation requires the Spectra Pro plugin to be active with a linked Instagram account.

Announced Source revision 1
Original source ↗

CVE-2026-16302

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-16302

Spectra Legacy – Gutenberg Blocks

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "brainstormforce",
    "product": "Spectra Legacy – Gutenberg Blocks",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "2.20.0"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-16302

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#546 · Revision 1
Added to Heist Feed
Publisher date
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